Active Damping of Stick-Slip Self-Excited Vibration for Selected External Excitation Frequencies

• Autorzy: Ryczek B. , Bogacz R.
• Języki publikacji: EN

Abstrakty

EN

There are numerous possibilities of active control of vibration in mechanical systems. Nevertheless, a very limited number of them can be applied to self-excited systems. This paper presents mechanisms for the generation of stick-slip self-excited vibration of the system with a relatively complicated, history dependent friction mode. The system is additionally influenced by an external harmonic excitation. The experimentally identified friction model enables the description of various cases of stationary and transient motion. For the majority of parameters the values of the external excitation, the amplitude of the system motion is greater than without it. But according to the theory, for the particular frequency of the external excitation, it is possible to minimise the amplitude more than twice. A discussion on the appropriate choice of excitation frequency is given in the paper.

Słowa kluczowe

EN

active damping; external harmonic excitation; self-excitation; dry friction; stick-slip vibration; experimentally identified model

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2002
• Tom: Vol. 26, No. 1
• Strony: 35--42
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Ryczek B.

• Institute of Fundamental Technological Research, Polish Academy of Sciences

autor

Bogacz R.

• Institute of Fundamental Technological Research, Polish Academy of Sciences
• Warsaw University of Technology

Bibliografia

• Bogacz, R., Bajer, Cz., 2000, Active control of beams under moving load, J. Theor. and Appl. Mech., 38 (3), 523-530.
• Bogacz, R., Popp, K., 1996, On simulation and experimental verification of the behaviour of active control beam structure subjected to moving loading, Simulation in Research and Development, R. Bogacz et al. (eds.), Warsaw, 35-45.
• Bogacz, R., Ryczek, B., 2001, Modelling and analysis of frictional phenomena in dynamical systems, Proc. of the American Society of Mechanical Engineers (ASME) International 2001 Design Engineering Technical Conferences, Pittsburgh.
• Bogacz, R., Ryczek, B., 2002, Nonlinear vibration of mechanical systems - friction induced vibration, Attractors, Signals, and Synergetics, W. Klonowski (ed.), Pabst Science Publishers, 1, 477-496.
• Bogacz, R., Ryczek, B., 1997, Dry friction self-excited vibrations; Analysis and experiment, Engineering Transactions, 45, 3-4, 487-504.
• Ryczek, B., 2000, Quasi-harmonic vibrations in self-excited system with dry friction; Experiment and modelling, Scientific Papers of Warsaw University of Technology, 134, 99-114.
• Frischgesell, T., Krzyżyński, T., Bogacz, R., Popp, K., 1999, Dynamics and control of a guideaway under a moving mass, Int. Journal Vehicle Design, 176-189.